Electric-current generator.



W. KAISLING.

PATENTED NOV. 28, 1905.

ELECTRIC CURRENT GENERATOR.

APPLICATION FILED MAY31,1904.

F ji.

. Z0. "2: 2x! 45 /3 45 a f 45 46 W 1 @5 07. T111 15. 1.5 12' .40. T Vilzesses if 7 b7 lrwerziar William KalISli/y fl y @www (MM a49- W A (far/16y UNITED STATES PATENT OFFICE.

\YILLIAW KAISLING. OF CHICAGO, ILLI NOI S, ASSIGNOR TO STROMBER-G- OABLSON TELEPHONE MANUFACTURING COMPANY, OF ROCHESTER. NEW YORK, .A CORPORATION OF NEW YORK.

- ELECTRIC-CURRENT GENERATOR.

Specification of Letters Patent.

Patented'fiov. 28, 19052 Application filed May 31, 1904. Serial No. 210,334. J

To all whom, it may concern.-

Be' it known that I, WILLIAM KAIsLINe,.a citizen of the United States, residing at Ohicago, in the county of Cook and State of Illiof this specification.

My. invention relates to electric generators. I

i V particularly to magneto-generators employed in the telephone art.

The object of my invention is to provide improved switching, mechanism whereby various connections may readily be made with the armature of the generator to supply'various'kindsof currents. I

My invention is of great importance in par-ty-linetelephone systems where, for instance, alternating currents, pulsating currents, and direct currents are required for op-- erating substation selective apparatus, and heretofore this could only be accomplished by the use of a, pluralityl'of generators each furnishing apeftain kind'of current.

My invention provides improved switching -mechanism attachable to anygenerator and provided with terminals which offer various combinations. By-connecting with twoof the terminals alternating current will be received from the' generator. By connecting with another set of terminals direct current will be delivered, and two other sets respectively furnish pulsating positive current and pulsating negative current. Thus a generator of my invention eliminates the necessity of a separate generator for each kind of current.

My iiivention'will be best understood by renut 19. is tightened the commutator will be Fig. 4 is a longitudi- Fig. 10 is a front view of theinsulating-disk. Fig. 11' is a front view of-Fig., 6, and Fig. 12 is a diagrammatic view showing the connections of the switching mechanism with the terminals. 1 Like reference characters refer to like parts throughout the various figures. I have shown my improved switching mechanism as applied to a generator such as is described in my copendingiapplication, Serial No. 166,273, filed July-20, I903. g

Thev armature 1 connects with a pinion 2, engaged by the driving-gear 3, connected to a counter-shaft 4:, having mi tered connection with a collar 5,secured to the actuating-shaft 6. The end plate 7 of the armature has a forwardly-extending bearing-sleeve 8, journaled in a journal-box 9. A bolt or rod 10 passes through the sleeve-bearing 8, being insulated therefrom by a bushing 11. 1 One terminal 6 of the armature 12 connects with the sl'eevebearing 8, and thus with the frame of the machine, while the other terminal 25. connects with the rod or boltlO. The bolt 10 serves to carry. I a commutator composedoffront and rear seg: ments 13 and 14, respectively. Each segment of the commutator consists of a'disk part 15 and an annularwall 16, extending almost one-half disk 18 by means of screws" 19.19, the seginents when in place'being' entirely insulated 5 from each other. The bolt 10 passes'thr'ough the center of the segments and insulatingdisk, to be engaged at its inner end by'aflnut 19'. v The rear segment 14: is provided with a hub 20 for engaging the front face of the sleeve-bearing 8. A pin 21"is secured in the rear-segment and extends therefrom to form 'a key for engaging the slot 22, cut in the front end of the SIeeve-bearing'Sfand thus when the I .95 securely held against the front of the sleevebearing 8, andthe commutator will be rotated with the armature by. virtue of the key 21. The central opening 23' through the rear segment 14: is made larger than the diameter of '100 the bolt to insulate the rear segment from the bolt, and thus the rear segment isconnected--- with the frame of the machine and the arm'a: ture-terrninal connected therewith, while the bolt and front segment are insulated from the 5 rear'segx ner-it and frame and' connected with the other armature-terminal. A mountingblock 23, of insulating material, is-provided for the switching mechanism. A stationary switch-spring 24 is provided at its lower end with a body portion 25 and a terminal 26, screws 27-27 passing through the body portion and the mounting-bloc]: 23'to engage the frame f of the machine, and thus spring 24 is permanently connected with the frame. The upper end of the spring 24 is provided with an expanded opening 28, thronghwhich the actuating-shaft 6- maypass upon rotation of the driving-gear. The stationary spring v is normally in engagement at its upper end with the switching s'pring 29, the lower-end 30 of this switching-spring extending downwardly into engagement with the head 31 of thebolt 10, and is consequently permanently connected 'with the'armature-terminal con-" nected with the bolt. An alternate contact- .spring 32, is adapted to befengagifed by the the'driv-.

switching-spring 29 upon rotation o ing-gear 3 to' cause leng'utuohnal movement of l the actuating-shaft 6 through the opening 28 of the spring 24 and against the switching-i spring 29, the end of the shaftfi being provided with a stud 33, of insulating material;

The alternate spring 32 is provided with a terminal 34, which may be integral with the spring or may be the terminal of a plate 35,

- which is in contact with the spring 32. The

springs 24,29, and 32-and the terminal plate 35 are assembled, as best shown in Fig; 1, an insulating-disk 36 being disposed between springs 24 29 and the insulating-disk 37 being disposed between springs 29 and 32, spring ,32,and terminal plate 35 being adjacent and in contact. These springs are secured to the I mounting-block 23 by means of screws'38 38,

bushings .39 causing insulation of the screws from the springs.

tact-plates 41 to afi'ordbetter contacts;

, Commutator springs or brushes 42 and 43- are secured to the sides of the mountingblock 23."; Each commutator-spring consists offa spring part 44 for engaging the comm utator and a mounting part 45. ,A screw 46 passes through the mounting-block 23 and through the upper end of the mounting parts 4510f the commutator-springs. This bolt is in contact with thespring 42, the threaded end this second bolt is engaged by terminal51,

Thef

which is in contact with the spring 43. terminals of these springs may be adapted to have conducting-wires soldered thereto; but

The endsof these springs may be provided with contact tips andconclamping-screws 52 and washers 53.

In Fig; 12 l have diagrammatically shown the circuit engagement connecting the springs with the armaturewand terminals, the shaft 6 being shown as actuated reconnect the 'switch ing-spring 29hwith the alternate'spring 32. lhave shown a permanen-tmagnetic field to be of north polarity at the left of the armature and of south. polarity at the right. It is seen that under 'norrnal'conditions-the armaturewinding is shunted by a lowlrre sistance paththrough the frame of rthe generator and traced, as follows: From theterminalj of'the Ifit is desired to derive alternating current from the generatonthe external circuit will be connected with. terminals 34 and 26, and

upon actuation of the shaft 6 to break the shunt circuit and to-connect springs 29 and 32 alternating current will flow as follows: From the terminal r; of the armature to the frame of the machine and totterminal 26, thence through the external circuit back to terminal 34"to the spring 32, spring 29, and through the boltlO to the terminal t of the armature.

Iii-direct current is desired, the external circuit will be connected with terminals 47 and 51- and the commutated current from the armature will be deliveredto the external circuit.

If positive pulsating current is desired, the external circuit will be connected to terminals '34 and 47. During one-half revolution of the commutator, as shown in Fig. 12, the external circuit is short-circuited through the circuit extending from terminal 47 to brush 42, segment 13 to springs 29 and 32 and to terminal 34. During the next half-revolution segment'14 will engage the commutator-spring 42 and positive pulsating current wilhflow as follows: from the t terminal of the armature to the-segment 14, tothe commutator-spring 42, terminal 47; and through the external circuit to terminal 34, through springs 32 and 29 to segment 13, and to the t terminal of the armature. Thus for every revolution of the commutator, a positive pulsating current is sent through the external circuit when c on'-; nected with terminals 34 and 47.

To'receive negative pulsating current, the external .pircuit will be conne c "to terminals afiid 51, and during engagement of the commutator spring 43 withtlie 'segirienti14,

as shown in Fig. 12', a negative impulse will" flow through the external "circuit as follows:

From the t terminal of y the armature to segment 14, to commutato'rspring 43, terminal 51, and through the; external circuit to terinitial 34, through springs and 29 to segment l3, and to the 2% terminal of the arma- 8o armature to frame through the spring 24 and through the spring29 totheterminal 25 ofthev armature.

. anism andsai'd commutator, one pair of' said terminals being the outlet of alternating 'cur" ture. When the actnating-shaft6 returns to its normal position, the'switching-spring 29 again engages the spring 24, and the shuntcircuit about the armature-winding is again established. This shunting of the -armaturewindingunder normal conditions is of particular importance where the generator is employed at--party-line substations, the impedance and resistance of the armature-winding beingcut fromcircuit'when the generator is,

inactive.

I thus produce 'a" generator with means whereby various'currents'may be readily derived from the armature. my improved swii ing' mechanism and commutator being'readily attachable to any styleof generator, and the necessity ofv employing a generator for each kind of currentis avoided.

I do not wishto be limited to the exact arrangement or construction of parts as shown, as many changes may readily be made without departingi'rom the spirit of the invention.

I'describe as new, however, and desire to securelby Letters Patent i I lf In'an electric-current. generator of the class described, the combination with an arinature having aWinding, of a commutator'for said; winding, switc'hingmechanism connected with said commutator, a plurality of contactterminals connected with said switching mechrent, a second pair being the outlet of direct current, a third pair. being the outlet of positive intermittent current, and a fourth pair being the outlet of negative intermittent cur-' rent. M v

2. In an electric-current generator of the class described, the combination with an armamutator switching .m echanism connecteda with said commutator and said w1nding,a

ture having a windinggof a commutator for said winding, contact-ispri'ngsfor said comswi'tching-spring for said switching me'chain ism, a nOrn xalcontact-spring normally ehgagor ing sa d sw1tchmg-spr1ngto close a shunt of low resistance about said armature-winding, an alternate contact-spring to be engaged by said switching-spring upon actuation of said generator, and a plurality of contact-terminals for said commutator-springs and switch.-

ing-springs, different pairs of said contactterminalsj being outlets of difi'erent kinds of current from said winding. 3. In, an electric-current generator'of; the

class described, the combination with an al 'mai ture having a winding, of' a commutatorfor said windi'ng,*contact sp rings for engaging the said commutator, switch mechanism connected with saidcommutator and winding, a switch? Eng-spring 'for said switchmechanism, a nor mal contactrs pring engaged by'said switching spring Whensaid generator is at rest to close a shunt path of low. resistance about the armature-winding, an alternate contact for said ch- I terminals for said springs,

nected with the other, termi mhsaid wind; ing and normally connected with-said normal= contact-spring to close a--path'of -low resist ance in shunt of said winding, an -alternat'c" I10 contactvspring forsaid switching mechanism,

engagement with saidalternate-spring, where 1 .of different kinds of current-flow t "said generator,. commutator-contact springs 8 secured tosaid mounting block, a-switching-' spring secured to said mountingblo'c'k and connected with one terin'inal'ot "aid w'inding, I r a normal contact forsaidswitchi ng'sspringy said switching-spring n'orm'a jpring'servfi 5 ing to close a shunt-path bf l'o resistanceabout said winding when'sa-i'cl generatoris atrest, an alternate contact-spg'" secured to 4 said mounting-block,aplural -oiifcfontact-- t d 1 aIitOmatiO Q ineans upon actuation: of said generator-for causing said switching-spring?to jbe-iiioved' from said normal contact to engag'ethe' 'alter nate contact, whereby said liunt 'path is broken, and whereby current {18 "supplied 'to 1 9 5 said contact-terminals,"different i of said" terminals being outlets of differentliinds of current-flow from saidfwin'd-in'g'. u

5. In an electric-curre'ntgenerator'ofthe class described, the combination wi-thi an, a'ri'nal i 00 ture having a'winding, of-a 'coinmutator f'oi said winding, contact-springs forsaid commu-' :3 tator, switching mechanism, anor'malcontact 7 7 spring forsald swltching mechan'i'sm connccted with one terminal of said winding, aswitclv I 5 ing-spring for saidswitchlng mecha'nis'm'con' w a plurality of contact-terminals forsaid'icom- 3 mutator springs and swltch-em'echanism springs, and automatic means'iup'on actuation of said generator for moving saidswitching- -S" spring from said normal contact-spring into by said shunt-circuit is broken and wh ere'b', current is supplied to said contact=teriiii nals, different pairs of said -terminalsbeing outlets- I Winding. r

6, In an electric-current genera or ofthe class described, the combinationwith a'nmmaturejhaving a winding normall "shunted by a 1 5 pathof low resistance, of"'a ;com mutat0r for said winding, contact-springssforsaidcomm e f1= jta'tor, terminal contacts forsaid co mmutator springs, a switching spring permafiedtly connected with one terminalof said -iv'inding,- liq-.130

v 3 said winding,

contact-springfor said s'witchingspring,-additional contact-terminals for said contactspring and the othei terminal of saidwinding, and automatic means upon actuation of said generator-for breaking said shunt-path about said winding and for moving said switching-IE spring into engagement with said contentspring, whereby current is supplied to saidterminal contacts, diflferent pairs of said ter- 1 minal contacts being outlets of different kinds ofcurrent-flow from said winding. t

7, In an electric-current generator of the class described, the combination with an armature having a winding, of a commutator for I5.said winding, commutator-springs for said different pairs of terminal contacts being the outlets of different kindsof current-flow from 8. In an electric-current generator of the class described, the combination with an armature havinga winding, of a commutator composed; of two segments forsaid winding,-a mounting-block secured to the frame (if said generator, "commu tator contactsprings secured to said mounting-block, switch mechan-' ism secured to said mounting-block, a normal contact-spring for said switch mechanism per- 4 manently connected with one terminal of said winding, a switching-spring for said switch mechanism permanently connected with the other terminal of said winding and normally engaging said normal contact-spring to'close a shunt-path. of low resistance about said wind.-

ing when said generatoris at rest, an alternate contact-spring for said switch mechanism,contact-terminals for said alternate spring, said commutator-springs and said normal spring, 5 and automatic meansupon actuation of said generator for moving said switching-spring from said normal spring to open said shuntpath about' said winding and'to move said switching-spring into engagement with said 'ralte rnate spring to raise said contact-terminals to a potential, one pair of said contact-terminals being the outlet of alternating current,

a second pair-being the outlet of 'direct current, a third pair being the outlet of positive pulsating currentland afourth pair being the outlet of negative pulsating current.

9. In an electric-current generator of the classdescrlbed, the comljiination with an armature having a winding, of a commutator for 5 the winding, commutator-springs engaging said commutator, switch springs connected with said com mutator'ancl said winding, and aplurality of contactterminals for said switch-springs and'commutator-springs, said sw tch-springs in their normal .position'serv-- 7 ing .to close-a low-resistancejsli ln't about the I armature-winding, and dilferent pairs of-s'ai'd contact-terminals being the outlets ofditfer ent'kinds, of current from the windingupon" actuation of said-generaton l0. In an electric-current generator of the class described, the combination with an armature having a winding, ofta commutator for the, winding, I commutation-springs engaging said commutator, switch springs {connected with said commutator and winding, said swit ch-spring's in their normal position serving to close a low-resistance shunt about the armature-windingaiid-a plurality "of contact terminals for said switchrsprings' and con'i- 8 5 mntator-springs, one pair of said terminals being theo'utl'et for alternating current, a second pair being theao'utlet for-direct current,

a third pair being the outlet for positive in:

termittent current, and a fourth pair being the outlet; for negative intermittent current.

11;.In an electric current generator of the classdescribed having a'singlearmature,,of a commutator for the winding of said armature,

' switching mechanism connected with said 95,

commutator and with said winding, a plurality ofcontact-terminals connected with said switching mechanism and with said commutator, one pair of said terminals being the outlet for alternating current, a second pair being the outlet for direct current, a third pair being the outlet for positive intermittentcurrent, and a fourth pair being the outlet for negative intermittent current. 7 1

12. In an electric-current generator of the .105 class described having a single armature, .of a commutator for the winding of said armature, 'a mounting-block supported from the generator-frame,- switchsprings supported on said mounting-block and connected withthearma- 1 1o ture-windiiig, commutator-brushessupported on said mountingblock ano'eng'aging thecommutator, a contact-terminal for each switch spring and brush,-one pair of said terminals being the outlet for alternating current, a second. I I 5 pair being the outletvfor'direct current, a third pair being the outlet for positive intermittent current, and a fourth pair being the outlet for negative pulsating current, all emanatingifrom said armature. I20

13. In an electric-current generator of-the class described having an armature provided with acommutator for itswinding,of a mountingblock supported from the generator: frame, switch-springs supported onisaid' 5 mounting-block and adapted for mechanical engagement'with the actuating-shaft of the generatonbrushes extending from said mounting-block and engaging the com'mutatnr, a contact-terminal for each switch-spring and I3 brush, two of said switch-springs being connected with the armature-winding and nor mally in engagement with each other to shortcircuit said winding, actuation of the generator causing opening of said short circuit and polarization of said contact-terminals, one pair of said terminals being the outlet for alternating current, a second pair being the outlet for'direct current, a third pair being the IO outlet for positive intermittent current, and

a fourth'pair being the outlet for negative in WILLIAM KAISLING.

\Vitnesses:

CHARLES J. SCHMIDT, HARVEY L. HANSON. 

